THE HAGUE, Netherlands —6 July 2018—The Fact-Finding Mission (FFM) of the Organisation for the Prohibition of Chemical Weapons (OPCW), issued an interim report on the FFM’s investigation to date regarding the allegations of chemical weapons use in Douma, Syria on 7 April 2018.

The FFM’s activities in Douma included on-site visits to collect environmental samples, interviews with witnesses, data collection. In a neighbouring country, the FFM team gathered or received biological and environmental samples, and conducted witness interviews.

OPCW designated labs conducted analysis of prioritised samples. The results show that no organophosphorous nerve agents or their degradation products were detected in the environmental samples or in the plasma samples taken from alleged casualties. Along with explosive residues, various chlorinated organic chemicals were found in samples from two sites, for which there is full chain of custody. Work by the team to establish the significance of these results is on-going. The FFM team will continue its work to draw final conclusions.

The Fact-Finding Mission also issued a report on 2 July 2018 addressing allegations of chemical weapons use in Al-Hamadaniya, Syria on 30 October 2016, and Karm al-Tarrab, Syria on 13 November 2016. On the basis of the information received and analysed, the prevailing narrative of the interviews, and the results of the laboratory analyses, the FFM cannot confidently determine whether or not a specific chemical was used as a weapon in the incidents that took place in the neighbourhood of Al-Hamadaniyah and in the area of Karm al-Tarrab. The FFM noted that the persons affected in the reported incidents may, in some instances, have been exposed to some type of non-persistent, irritating substance.

The FFM’s reports on the allegations of chemical weapons use in Douma, Al-Hamadaniya, and Karm Al-Tarrab have been shared with States Parties to the Chemical Weapons Convention. The reports were also transmitted to the UN Security Council through the UN Secretary-General.